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Submitted by Dr Eric Poitevin, Nestlé Research Centre, Lausanne, Switzerland.
Performance Testing of AOAC 2011.14/MTE01 for infant formulae, pediatric, and
adult nutritionals.
1.
Introduction
The analytical procedure entitled: “Calcium, Copper, Iron, Magnesium, Manganese,
Potassium, Phosphorus, Sodium, and Zinc in Fortified Food Products - Microwave Digestion
and Inductively Coupled Plasma-Optical Emission Spectrometry” was published as AOAC
Final action 2011.14 in 2013.
This method and extensive supporting data were originally published in J. AOAC Int. 92,
1484 (2009) and J. AOAC Int. 95, 177 (2012).
Since 2013, this procedure has been submitted to extensive Performance Testing including
infant formulae, pediatric and adult nutritionals.
This document summarizes the data from six Performance Tests made in 2014 and 2015.
2.
Performance Testing.
The AOAC procedure was used by 30 independent laboratories participating in one or more
of 6 performance tests around the world to analyse at least one of the 9 nutritional
elements in five categories of infant formula and pediatric/adult nutritionals:
Infant Formula Powder Milk Based
Infant Formula Powder Partially Hydrolyzed Milk Based
Adult Nutritional RTF
Adult Nutritional RTF High Protein
Pediatric Nutritional RTF
All categories of products as mentioned above were used in six performance tests. Two
different samples were sent for each performance test.
For the respective performance tests, each laboratory provided one result per test sample.
Hence, only (relative) reproducibility standard deviation SD
R
(RSD
R
) data of the average
values are available for each performance test.
Details about the 12 samples used during the six performance tests for the nine elements,
are displayed in Table 1 below. Products in the same category (e.g. Infant Formula Powder
Partially Hydrolyzed Milk Based) have a slightly different composition.
2011.14 (MTE-01) - MLT-Def
FOR ERP USE ONLY
DO NOT DISTRIBUTE